US358899A

US358899A - Adjustable carriage for saw-mills

Info

Publication number: US358899A
Authority: US
Publication date: 1887-03-08
Anticipated expiration: 1904-03-08

Description

(No Model.) 2 Sheets-Sheet 1.

G. STRONG.

ADJUSTABLE CARRIAGE FOR SAW MILLS.

No. 358,899. Patented Mar. 8, 1887.

ATT T dlnwwmvmwm 2 Sheets-Sheet 2.

(No Model.)

G. STRONG.

ADJUSTABLE CARRIAGE FOR SAW MILLS.

Patented Mar. 8, 1887.

WWW: 1 i? 2% INVENTOR- UNITED STATES PATENT OFFICE.

GEORGE STRONG, OF SOUTH ROOKWOOD, MICHIGAN.

ADJUSTABLE CARRIAGE FOR SAW-MILLS.

SPECIFICATION forming part of LettersI-atent No. 358,899, dated March 8, 1887.

Application tiled Augustll, 1886. Serial No. 209,922. (No model.)

To all whom it may concern.-

Be it known that I,Gno12en STRONG, of the village of South Rockwood, in the county of Monroe and State of Michigan, have invented new and useful Improvements in Adjustable Carriages for Saw-Mills 5 and I declare the following to be a full, clear, and exact dcscription of my present invention, and one that will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to carriages for sawmills, and to those which are designed more especially for cutting stave-bolts.

The following is a description of my improvement, which will be fully understood, when taken in connection with the annexed drawings, in which Figure I is a perspective view of the ma chine, showing the carriage in position for making a perpendicular cut. Fig. 2 is a side elevation showing the carriage in position for cutting radially with respect to the center of the log or bolt. Fig. 3 is a cross-section of one of the arms O and its knee. Fig. 4 shows the end of a log or bolt having parallel cuts, and Fig. 5 is a similar view of a bolt as cut by my improvement.

Referring to the annexed drawings by lotter, A designates the traveling platform, to which is attached an adjustable carriage.

B B designate the standards, which afford journal-bearings for a horizontal shaft, F, to which are secured the arms 0 O of a carriage, upon which arms are movable knees D. These knees are suitably guided on their arms, and to their bases are secured racks a, with the teeth of which engage spur-wheels II, that are keyed on a transverse shaft, E, the ends of which have their bearings in said arms 0 C.

At or near the middle of the length of the shaft E is keyed a spur-wheel, I, with which engages a pawl that is pivoted to a hand-lever, N, which is applied to vibrate on shaft E. \Vhen the said pawl is engaged with the wheel I and the lever N vibrates, the knees D D will be moved forward and the stuff fed up to the saw f. Each knee D is provided with a dog, P, for properly holding the stuff upon the arms 0 O. The arms 0 O are rigidly connected together by transverse bars G G, to the latter one of which is secured cars a, and to these cars a segmental rack, K, is pivoted, which is vertically movable in a guideway, z, in one of the beams of the platform A. The teeth of the rack K engage with aspur-wheel, J, which is keyed on a shaft, R, that is journaled in the crossbeams S S of the platform A, andon one end of the shaft R is secured a hand-lever, M, provided with a pawl which engages with notches d in a sectoryL, which is secured to the platform A. By these means the arms 0 O can be adjusted and secured in different planes, as indicated by the aid of dotted line 1 1 on Fig. 2. The platform A is mounted on wheels 6, which are guided by rails secured upon. tracks T.

The machine above described is designed for cutting staves in such manner that there will be no staves known as wash board staves. logs into lengths suitable for stave-lengths. These are put one at a time on the carriage when in'thc horizontal position shown in Fig. 1, in which position the perpendicular cut is made. After the log is thus cut one half is placed on the carriage wit-h its smooth face down, as indicated in Fig. 2.

It will be observed that the bolts are not cut squarely through the log, as in Fig. 4, but on an angle, as shown in Figs. 2 and 5, the different angles being obtained by raising or lowering the back end of the carriage, as above described.

Having described my invention, I claim- The combination, with the connected vibrating arms 0, provided with knees adjustable, as described, of the traveling platform A, the segmental rack K, pivoted to the rear cross-bar of said arms and guided below, the spur-wheel J ,engaging with said rack, thehandlever on the shaft of said wheel provided with a pawl, and the notched sector L, with which the pawl engages, all substantially as and for the purposes described.

In practice it is designed to cut the In testimony that I claim the above I have hereunto set my hand and affixed my signature, in presence of two witnesses,at Detroit, Michigan, this 30th day of July, A. D. 1886.

GEORGE STRONG. In presence of- G. WV. Hays, ABRAM VAN VRANKEN.